CHPASSWD linux command manual

CHPASSWD(8)                                                    CHPASSWD(8)



NAME
       chpasswd - update password file in batch

SYNOPSIS
       chpasswd [-e]

DESCRIPTION
       chpasswd  reads  a  file of user name and password pairs from standard
       input and uses this information to update a group of  existing  users.
       Without  the  -e  switch,  the passwords are expected to be cleartext.
       With the -e switch, the passwords are  expected  to  be  in  encrypted
       form.  Each line is of the format

              user_name:password

       The named user must exist.  The supplied password will be encrypted as
       necessary, and the password age updated, if present.

       This command is intended to be used  in  a  large  system  environment
       where many accounts are created at a single time.

CAVEATS
       The input file must be protected if it contains unencrypted passwords.

SEE ALSO
       passwd(1), newusers(8), useradd(8)

AUTHOR
       Julianne Frances Haugh (jockgrrl@ix.netcom.com)



                                                                  CHPASSWD(8)